90 Debiles. 
tooth Mts. southern Idaho and eastward to eastern Montana and 
northward to British Columbia, not in Utah, alpine and subalpine 
on rocky slopes, blooming in July and August. The type has very 
short stems, The less alpine forms have longer stems and leaves. 
30. Astragalus leptaleus Gray Proc. Am. Acad, 6 220 (1864). Phaca 
pauciflora Nutt. A. pauciflorus (Nutt.) Gray. Pods rarely 1 cm, long, 
3-4 mm. wide, chartaceous, a trifle inflated, elliptical-lanceolate or 
ovate to oval, acutish, abruptly contracted into a stipe about half as 
long as calyx, very shallow and widely-sulcate or flat dorsally, rather 
obcompressed, appearing as if nearly round in cross section, little 
oblique, sometimes a little curved and resembling small forms of A. 
flexuosus. Flowers 2-5, white (rarely purplish) on the ends of long 
and filiform axillary peduncles which are shorter than the leaves, about 
1 cm. long. Banner obovate to oblong-obovate, about 7 mm, long, 4-5 
mm. wide, notched, abruptly arched to 45 degrees at calyx tips, 2-3 mm. 
Longer than wings. Wings oblanceolate, 2 mm. wide, rather arched 
often to 30 degrees, 2 mm. longer than keel. Keel very short, about 
2 mm. long and high, rounded to a half circle from base, very obtuse. 
Calyx tube about 3 mm. long, narrdwed below, not oblique, a little 
longer than the subulate teeth and about as long as the filiform pedicel 
and subulate bract. Peduncles 2-5 cm. long. Leaves 7-10 cm. long, very 
narrow with ascending leaflets, and very delicate. Leaflets 7-11 pairs, 
lanceolate to elliptical, acute, distant, long-petiolulate, 7-12 mm. long. 
Stipules narrowly subulate, not reflexed, 4-10 mm. long, connate even 
on the uppermost nodes. Stems filiform, flexuous and very weak, 
rarely a foot long, often only a few inches long, the internodes rather 
short, minutely and sparsely pubescent but seemingly smooth. Whole 
plant very delicate, supported by the grass in the deep meadows in 
which it grows. Stems very few from slender running rootstocks as in 
A. andinus. This is equally rare with A. debilis and with the same 
wide distribution. Middle Temperate life zone. From Santa Fe New 
Mexico northward to British America. Westward to Gunnison Colorado, 
not as yet found in Utah nor the Great Basin. Monida, Somers, Big- 
fork Montana, Jones, 
